KVM: x86: allow guest to use cflushopt and clwb

Pass these CPU features to guest to enable them in guest

They are needed by nvdimm drivers

Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 2fbea25..962fc7d 100644 (file)
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -348,7 +348,7 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
                F(FSGSBASE) | F(BMI1) | F(HLE) | F(AVX2) | F(SMEP) |
                F(BMI2) | F(ERMS) | f_invpcid | F(RTM) | f_mpx | F(RDSEED) |
                F(ADX) | F(SMAP) | F(AVX512F) | F(AVX512PF) | F(AVX512ER) |
-               F(AVX512CD);
+               F(AVX512CD) | F(CLFLUSHOPT) | F(CLWB);
 
        /* cpuid 0xD.1.eax */
        const u32 kvm_supported_word10_x86_features =